113 Final Study Guide Flashcards
To Ensure Safety when working with fiber optic cables, you should always ensure that…
(Quiz 1)
You wear safety glasses
What is one thing you should always remember when working with ladders?
(quiz 1)
Never leave tools on top of the ladder
List some ways to ensure workplace safety
(quiz 1)
Survey the work area before you start
Locate the fire extinguishers
Only use fire-rated cabling in plenum areas
Does voice and data wiring work with high voltage?
(quiz 1)
No, voice and data cabling is low voltage.
What should you do if a fire occurs and you can not quickly and safely extinguish the flames
(quiz 1)
Activate the fire alarm
What does CSA stand for? (quiz 1)
Canadian Standards Association
What is higher priority? Local or provincial codes?
(quiz 1)
Local codes take precedence over provincial codes
A complete system of cabling and associated hardware, which provides a comprehensive voice and
data infrastructure is referred to as what? (quiz 1)
Structured Cabling
What is considered a passive component in structured cabling? (quiz 1)
Anything between a switch port and a NIC is considered a passive component.
Name some ways a person could be involved with the structured cabling industry (quiz 1)
Installer
Network Admin
Customer
Project Manager
Name some responsibilities of a cable installer? (quiz 1)
A cable installers job is to provide functional, tested, and documented cabling.
Which type of Tester should be used to safely check electrical outlets or nearby cables for voltage? (quiz 1)
Multi-Meter tester.
What is the fucntion of a Ground Fault Interrupter (GFCI?) (quiz 1)
GFCIs stop the flow of electrons and reduce the hazard of electrical shock and fire.
What is Electromagnetic Interference (EMI)? (quiz 1)
EMI Is the noise from electrical circuits or devices. It can interfere with data signals and distort them
causing communications issues.
Name some safety measures you should be aware of while on the job (quiz 2)
Always wear proper clothing
Remember to locate and avoid electrical wiring
Observe ladder safety
How do you prevent EMI? (quiz 2)
Keep copper cables away from power cables, fluorescent lights, and electrical motors.
What is more important than getting the job done on time? Be sure to think really logically on this one super logical (quiz 2)
Ensure all terminations are done correctly.
What two types of copper cabling are the new standard in the lan market? (quiz 2)
CAT6 and CAT5e
In Canada, what is the most followed standard in premises communications cabling? (quiz 2)
T568A
What type of cabling should be used when working with screw terminal jacks or data inserts? (quiz 2)
4 Pair UTP Solid cabling.
List the color code for the top and bottom of a screw terminal jack (lab question)
On top:
Red - Blue
Green - W/blue
Black - W/orange
Yellow - orange
On Bottom:
Red - green
Green - W/green
Black - W/brown
Yellow - brown
How do you ensure that you receive CAT6a performance throughout a data network? (quiz 2)
You have to make sure that you use CAT6a data inserts and hardware.
How much can you untwist a pair of conductors in a UTP cable before it becomes a victim of NEXT?
1/2” (Half an inch)
The interwoven nature of each pair of wires in twisted pair cables helps neutralize noise and reduce interference. What is the name of this effect? (quiz 2)
Cancellation Effect.
Name the tip and ring colors of a 4 pair UTP cable. (quiz 2)
Tip
W/Blue, w/orange, w/green, w/brown
Ring
Blue, orange, green, brown
What is the color code for termination a T568A Straight Through Patch Cable?
Which pins on an RJ-45 Ethernet jack represent which colors?
For T568A:
1 W/G
2 G
3 W/O
4 B
5 W/B
6 O
7 W/BR
8 BR
Name the type of connector that works by insterting a solid UTP wire into grippers with sharp internal edges. These edges then cut through the insulation making contact with coppor conductors.
Insulation Displacement Connector (IDC)
Where do most shorts and opens occur when working with CAT5e and CAT6 cabling?
Most shorts and opens occur at the connections
What does the ft marker on the cable markings represent?
It represents the ammount of cable remaining inside the box.
What type of UTP cabling would be used inside a ceiling where Plenum is located?
Solid CMP cabling.
What is the maximum cable distance of a CAT6 cable?
100 meters
Define Baseband
Baseband describes the communication system in which the media carries one signal only. Even though that signal may have many components. it remains only one signal from the perspective of the cable.
Which two ways is bandwidth expressed for digital devices?
bits per second (bpm)
Bytes per second (Bps)
What is inductance?
Inductance is the electrical feild that forms around a wire.
What is attenuation?
Attenuation is a natural consequence that refers to any reduction (or loss) in the strength of a signal and it can occur in both optical and electrical signaling.
What is NEXT?
Near-end Crosstalk (NEXT) occurs when too much wire in untwisted, causing the signals to radiate into other pairs within the cables. This occurs most frequently at the point where the connector attaches to the wire.
What do you use SOLID cabling for?
What do you use STRANDED cable for?
Stranded cabling is used for patch cables
Solid cabling is used for everything else.
What is the a multimdeia cable tester designed for?
Multimedia cable testers are designed to test all common low voltage cabling systems found in today’s networks to ensure the cabling meets the TIA/EI standards being tested.
Which of the following is the “preferred” tool to use when removing the cable jacket from stranded ethernet cabling?
Ethernet UTP/STP cable strippers
What type of battery is used to power the wire tracer probe and transmitter that was included in the tool kit?
9 volts.
How many conductors are there in a 4 pair UTP cable?
8, one for each copper wire.
How much of the outer jacket should you remove when terminating a data inster onto a UTP CAT6 cable?
2 to 4 inches
What two cable qualities are most important regarding network cabling?
- The category of the cable and components connected to it
- The capacitance of the cable
When installing UTP cabeling in a suspended (or drop) ceiling, what best practice should cabling installers adhere to?
Use J-hooks or Cable baskets to support the cables. Never rest cables on ceiling tiles.
Which layer of the OSI model do cable installers and technicians focus on?
Layer 1 - Physical layer
The VDV cable tester that you have been using in the lab is designed to test which of the following low voltage cabling systems?
UTP Data Cabling and UTP CAT3 Voice cabling
What is the most common wireless signal?
Radio Waves through free space
What does the uplink icon on the VDV cable tester mean?
The uplink icon means that all 8 pins are correctly wired with the 1-2 and 3-6 pairs crossed when working with the VDV cable tester. It is accompanied by the “Pass” icon.
What should you do before executing the rough in?
Use post it notes to temporarilly label the boxes and use a permanent marker to label the cable ends.
For long cable runs thorough conduit pipes, what is reccomended to help prevent damage to the cable as it is being pulled through the pipe?
Special Cable Lubricant ;)
Hwo many subsystems make up structured cabling?
There are 6 Subsections.
Demarc Point
Equipment Room
Backbone Cabling
Telecomunications Room
Horizontal Cabling
Work Area
What is the VDV Cable Tester capable of showing you?
The VDV Cable Tester shows
Volts
Wire Maps
Opens
Splits
What are two advantages of using UTP cabling over other types?
UTP Cabling is cheaper and simple to install.
What is the biggest concern when developing and updating wireless technology?
The biggest concern is making sure they are not subject to security concerns and unathorized use.
How do you eliminate the need to tone out cables after they have been installed?
Making sure you label both ends of the cable as you are installing it.
What is a bix punchdown tool?
A bix punchdown is a single action spring activated punchdown tool used to terminate cabling onto Canadian cross connect systems.